XSol Diagnostic System

Welcome to the XSol Diagnostic System

This system provides interactive diagnostic tests with proper sequence navigation based on the decoded .seq file logic.

Start Diagnostic Sequence

or choose a specific test below:

VOKERA LINEA 28

WARNING - IMPORTA

Next: &2, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

SYSTEM CHECKS

PLEASE ENSURE THE FOLLOWING SYSTEM CHECKS ARE COMPLETED

Next: &8, !f17

VOKERA LINEA 28

G.C. NUMBER 47 094 2

Next: &1, !f16

DHW BURNER ESTABLISHED

ATTACH U-GAUGE TO BU

Next: &572, ?196, ?198, ?200, ?820

DHW FAN RUNS

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM

Next: &10, f22

DHW FLOW RATE

Next: &86, f19

DHW MODULATION

HOT WATER TEMPERATUR

Next: &12, f244

DHW BURNER IGNITION

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM

Next: &3, ?158, ?160

CH DEMAND

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: &300, ?248, ?346

CH OPERATION

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: &14, ?302, ?308, ?318

SYSTEM PRESSURE RISE

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: &329, !f357

PUMP OVERRUNS

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: &nff, !f334

FACIA DISPLAY

Next: &378, f94

DHW PREHEAT

HOT WATER TEMPERATUR

Next: &13, !f376

CH MODULATION

CENTRAL HEATING TEMP

Next: &330, f331

RE-IGNITION DELAY

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: &15, !f375

PREHEAT FUNCTION

Next: &5, f380

DHW OPERATION

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM

Next: &9, ?573, ?575, ?577, ?579, ?731, ?735, ?772

DHW FAN RUNS

AIR PRESSURE SWITCH TUBES

Next: End

DHW FAN RUNS

VENTURI

Next: End

DHW PUMP RUNS

PRIMARY THERMISTOR

Next: End

DHW PUMP RUNS

DHW THERMISTOR

Next: End

DHW FAN RUNS

DHW FLOW SWITCH

Next: End

FAULT

ELECTRICAL SAFETY CHECKS

Next: End

FAULT

SYSTEM CHECKS

Next: End

DHW BURNER IGNITION

AIR PRESSURE SWITCH TUBES

Next: End

DHW BURNER IGNITION

VENTURI

Next: End

DHW BURNER IGNITION

FLUE

Next: End

DHW FAN RUNS

FLUE

Next: End

FACIA DISPLAY

WIRING LOOM

Next: End

FACIA DISPLAY

FUSE F1

Next: End

FACIA DISPLAY

FUSE F2

Next: End

FACIA DISPLAY

Next: End

DHW BURNER IGNITION

GAS INLET PRESSURE

Next: End

SPARKING PRESENT

SPARK ELECTRODE POSITION

Next: End

HIGH FLAME NO OUTPUT FROM IGNITION BOARD

MAIN PCB

Next: End

DHW BURNER ESTABLISHED MODULATING SOLENOID

GAS VALVE

Next: End

DHW BURNER ESTABLISHED BURNER IGNITION PRESSURE LOW OR DIES OUT

GAS INLET PRESSURE

Next: End

DHW BURNER ESTABLISHED

PRIMARY HEAT EXCHANGER FLUE WAYS

Next: End

DHW BURNER ESTABLISHED BURNER IGNITES BUT BAFFLES OUT

GAS INLET PRESSURE

Next: End

DHW BURNER IGNITION

SPARK ELECTRODE AND LEAD

Next: End

NO SPARKING

SPARK ELECTRODE POSITION

Next: End

DHW BURNER ESTABLISH

SPARK ELECTRODE POSITION

Next: End

DHW BURNER ESTABLISH

SPARK ELECTRODE AND LEAD

Next: End

DHW BURNER IGNITION ELECTRICAL

GAS VALVE

Next: End

DHW BURNER ESTABLISH

PRIMARY THERMISTOR

Next: End

DHW MODULATION

DHW THERMISTOR

Next: End

CH IGNITION

EXT CONTROLS RTC

Next: End

CLOCK NO SUPPLY VOLTAGE

MAIN PCB

Next: End

CH IGNITION

TIMER LINK (NO CLOCK)

Next: End

CH NOISY DHW OK

PUMP

Next: End

CH MODULATION

PRIMARY THERMISTOR

Next: End

PUMP OVERRUNS

MAIN PCB

Next: End

BOILER AND RADIATORS PROVIDE INSUFFICIENT HEAT

PRIMARY THERMISTOR

Next: End

BOILER TO TEMPERATURE RADIATORS COLD

DIVERTER VALVE BODY

Next: End

BOILER TO TEMPERATURE RADIATORS COLD

PUMP

Next: End

BOILER TO TEMPERATURE RADIATORS COLD

MAIN PCB

Next: End

CH DEMAND

DHW FLOW SWITCH

Next: End

NO SPARKING

MAIN PCB

Next: End

BOILER AND RADIATORS PROVIDE INSUFFICIENT HEAT

PUMP

Next: End

SYSTEM PRESSURE RISE

EXPANSION VESSEL

Next: End

DHW FAN RUNS

OVERHEAT THERMOSTAT

Next: End

DHW FLOW RATE

COLD WATER INLET STOPCOCK

Next: End

SPARKING PRESENT

MAIN PCB

Next: End

RE-IGNITION DELAY

MAIN PCB - RE-IGNITION DELAY

Next: End

DHW PREHEAT

MAIN PCB - DHW PREHEAT

Next: End

DHW FAN RUNS NO PREHEAT

AIR PRESSURE SWITCH TUBES

Next: End

DHW FAN RUNS NO PREHEAT

VENTURI

Next: End

DHW FAN RUNS NO PREHEAT

FLUE

Next: End

DHW FAN RUNS NO PREHEAT

DHW FLOW SWITCH

Next: End

DHW FAN RUNS NO PREHEAT

OVERHEAT THERMOSTAT

Next: End

DHW PUMP RUNS NO PREHEAT

PRIMARY THERMISTOR

Next: End

DHW PUMP RUNS NO PREHEAT

DHW THERMISTOR

Next: End

DHW FAN RUNS NO PREHEAT

SYSTEM PRESSURE SWITCH

Next: End

DHW BURNER IGNITION NO PREHEAT

AIR PRESSURE SWITCH TUBES

Next: End

DHW BURNER IGNITION NO PREHEAT

VENTURI

Next: End

DHW BURNER IGNITION NO PREHEAT

FLUE

Next: End

NO SPARKING NO PREHEAT

MAIN PCB

Next: End

NO SPARKING NO PREHEAT

SPARK ELECTRODE POSITION

Next: End

DHW BURNER IGNITION NO PREHEAT

SPARK ELECTRODE AND LEAD

Next: End

DHW BURNER IGNITION NO PREHEAT

GAS INLET PRESSURE

Next: End

SPARKING PRESENT NO PREHEAT

MAIN PCB

Next: End

DHW BURNER IGNITION ELECTRICAL NO PREHEAT

GAS VALVE

Next: End

SPARKING PRESENT NO PREHEAT

SPARK ELECTRODE POSITION

Next: End

DHW BURNER ESTABLISH NO PREHEAT

SPARK ELECTRODE POSITION

Next: End

DHW BURNER ESTABLISH NO PREHEAT

SPARK ELECTRODE AND LEAD

Next: End

DHW BURNER ESTABLISHED NO PREHEAT

PRIMARY HEAT EXCHANGER FLUE WAYS

Next: End

DHW BURNER ESTABLISHED BURNER IGNITES BUT BAFFLES OUT NO PREHEAT

GAS INLET PRESSURE

Next: End

DHW BURNER ESTABLISH NO PREHEAT

PRIMARY THERMISTOR

Next: End

HIGH FLAME NO OUTPUT FROM IGNITION BOARD NO PREHEAT

MAIN PCB

Next: End

DHW BURNER ESTABLISHED MODULATING SOLENOID NO PREHEAT

GAS VALVE

Next: End

DHW BURNER ESTABLISHED BURNER IGNITION PRESSURE LOW OR DIES OUT NO PREHEAT

GAS INLET PRESSURE

Next: End

CH DEMAND

SYSTEM PRESSURE SWITCH

Next: End

DHW TEMPERATURE LOW RADIATORS HOT

MAIN PCB

Next: End

DHW TEMPERATURE LOW RADIATORS HOT NO PREHEAT

MAIN PCB

Next: End

DHW OPERATION NO PREHEAT

BURNER MANIFOLD

Next: End

DHW OPERATION NO PREHEAT

PRIMARY HEAT EXCHANGER

Next: End

DHW MODULATION NO PREHEAT

DHW THERMISTOR

Next: End

CH DEMAND NO PREHEAT

DHW FLOW SWITCH

Next: End

CH IGNITION NO PREHEAT

TIMER LINK (NO CLOCK)

Next: End

CLOCK NO SUPPLY VOLTAGE NO PREHEAT

MAIN PCB

Next: End

CH IGNITION NO PREHEAT

EXT CONTROLS RTC

Next: End

CH DEMAND NO PREHEAT

SYSTEM PRESSURE SWITCH

Next: End

CH NOISY DHW OK NO PREHEAT

PUMP

Next: End

BOILER TO TEMPERATURE RADIATORS COLD NO PREHEAT

MAIN PCB

Next: End

BOILER TO TEMPERATURE RADIATORS COLD NO PREHEAT

DIVERTER VALVE BODY

Next: End

BOILER TO TEMPERATURE RADIATORS COLD NO PREHEAT

PUMP

Next: End

BOILER AND RADIATORS PROVIDE INSUFFICIENT HEAT NO PREHEAT

PUMP

Next: End

BOILER AND RADIATORS PROVIDE INSUFFICIENT HEAT NO PREHEAT

PRIMARY THERMISTOR

Next: End

SYSTEM PRESSURE RISE NO PREHEAT

EXPANSION VESSEL

Next: End

CH MODULATION NO PREHEAT

PRIMARY THERMISTOR

Next: End

RE-IGNITION DELAY NO PREHEAT

MAIN PCB - RE-IGNITION DELAY

Next: End

PUMP OVERRUNS NO PREHEAT

MAIN PCB

Next: End

DHW OPERATION

BURNER MANIFOLD

Next: End

DHW OPERATION

DHW FLOW SWITCH

Next: End

DHW FLOW RATE

FLOW REGULATOR

Next: End

DHW OPERATION NO PREHEAT

BYPASS VALVE

Next: End

CH OPERATION

BYPASS VALVE

Next: End

DHW OPERATION

BYPASS VALVE

Next: End

CH OPERATION NO PREHEAT

BYPASS VALVE

Next: End

DHW OPERATION NO PREHEAT

NON RETURN VALVE

Next: End

DHW OPERATION

NON RETURN VALVE

Next: End

BOILER REACHES TEMPERATURE DHW COLD

OVERHEAT THERMOSTAT

Next: End

BOILER REACHES TEMPERATURE DHW COLD

PRIMARY THERMISTOR

Next: End

BOILER REACHES TEMPERATURE DHW COLD

DHW THERMISTOR

Next: End

BOILER REACHES TEMPERATURE DHW COLD NO PREHEAT

OVERHEAT THERMOSTAT

Next: End

BOILER REACHES TEMPERATURE DHW COLD NO PREHEAT

PRIMARY THERMISTOR

Next: End

BOILER REACHES TEMPERATURE DHW COLD NO PREHEAT

DHW THERMISTOR

Next: End

BOILER REACHES TEMPERATURE DHW COLD NO PREHEAT

NON RETURN VALVE

Next: End

BOILER REACHES TEMPERATURE DHW COLD

NON RETURN VALVE

Next: End

DHW FAN RUNS

SYSTEM PRESSURE SWITCH

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1C

DHW THERMISTOR

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1C

PRIMARY THERMISTOR

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1C

OVERHEAT THERMOSTAT

Next: End

DHW BURNER IGNITIONA2

VENTURI

Next: End

DHW BURNER IGNITIONA2

FLUE

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER ASHORT WHILE 1C

NON RETURN VALVE

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1CDHW BURNER ESTABLISH PREHEAT

DHW THERMISTOR

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1CDHW BURNER ESTABLISH PREHEAT

PRIMARY THERMISTOR

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1CDHW BURNER ESTABLISH PREHEAT

OVERHEAT THERMOSTAT

Next: End

DHW BURNER IGNITIONA2DHW BURNER ESTABLISH PREHEAT

VENTURI

Next: End

DHW BURNER IGNITIONA2DHW BURNER ESTABLISH PREHEAT

FLUE

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER ASHORT WHILE 1CDHW BURNER ESTABLISH PREHEAT

NON RETURN VALVE

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1CDHW OPERATION1

DHW THERMISTOR

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1CDHW OPERATION1

PRIMARY THERMISTOR

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1CDHW OPERATION1

OVERHEAT THERMOSTAT

Next: End

DHW BURNER IGNITIONA2DHW OPERATION1

VENTURI

Next: End

DHW BURNER IGNITIONA2DHW OPERATION1

FLUE

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER ASHORT WHILE 1CDHW OPERATION1

NON RETURN VALVE

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1CDHW OPERATION

DHW THERMISTOR

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1CDHW OPERATION

PRIMARY THERMISTOR

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1CDHW OPERATION

OVERHEAT THERMOSTAT

Next: End

DHW BURNER IGNITIONA2DHW OPERATION

VENTURI

Next: End

DHW BURNER IGNITIONA2DHW OPERATION

FLUE

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER ASHORT WHILE 1CDHW OPERATION

NON RETURN VALVE

Next: End

FACIA DISPLAY

MAIN PCB

Next: End

DHW FAN RUNS

AIR PRESSURE SWITCH

Next: End

DHW BURNER IGNITION

AIR PRESSURE SWITCH

Next: End

FACIA DISPLAY

DISPLAY PCB

Next: End

DHW BURNER IGNITION MECHANICAL

GAS VALVE

Next: End

DHW BURNER ESTABLISHED MECHANICAL FAILURE

GAS VALVE

Next: End

DHW BURNER ESTABLISHED BURNER IGNITES BUT BAFFLES OUT

GAS VALVE

Next: End

DHW BURNER IGNITION

SPARK GENERATOR

Next: End

DHW BURNER ESTABLISH

IGNITION PCB

Next: End

NO SPARKING

IGNITION PCB

Next: End

DHW BURNER IGNITION

BURNER MANIFOLD

Next: End

DHW MODULATION

DISPLAY PCB

Next: End

CLOCK OUTPUT VOLTAGE OK

MAIN PCB

Next: End

NO IGNITION

TIMER (CLOCK)

Next: End

BOILER TO TEMPERATURE RADIATORS COLD

DIVERTER VALVE HEAD

Next: End

BOILER TO TEMPERATURE RADIATORS COLD

Next: End

CH MODULATION

DISPLAY PCB

Next: End

DHW BURNER ESTABLISHED BURNER IGNITES STRAIGHT TO HIGH FLAME

GAS VALVE

Next: End

CH DEMAND

MAIN PCB

Next: End

BOILER AND RADIATORS PROVIDE INSUFFICIENT HEAT

MAIN PCB

Next: End

DHW BURNER IGNITION

IGNITION PCB

Next: End

DHW FAN RUNS NO PREHEAT

FAN ASSEMBLY

Next: End

DHW FAN RUNS NO PREHEAT

AIR PRESSURE SWITCH

Next: End

DHW FAN RUNS NO PREHEAT

MAIN PCB

Next: End

DHW BURNER IGNITION NO PREHEAT

AIR PRESSURE SWITCH

Next: End

NO SPARKING NO PREHEAT

IGNITION PCB

Next: End

DHW BURNER IGNITION NO PREHEAT

SPARK GENERATOR

Next: End

DHW BURNER IGNITION NO PREHEAT

IGNITION PCB

Next: End

DHW BURNER IGNITION MECHANICAL NO PREHEAT

GAS VALVE

Next: End

DHW BURNER IGNITION NO PREHEAT

BURNER MANIFOLD

Next: End

DHW BURNER ESTABLISH NO PREHEAT

IGNITION PCB

Next: End

DHW BURNER ESTABLISHED BURNER IGNITES BUT BAFFLES OUT NO PREHEAT

GAS VALVE

Next: End

DHW BURNER ESTABLISHED MECHANICAL FAILURE NO PREHEAT

GAS VALVE

Next: End

CH IGNITION NO IGNITION

MAIN PCB

Next: End

PREHEAT INOPERATIVE, DHW TAKES TOO LONG TO REACH SATISFACTORY TEMPERATURE

MAIN PCB

Next: End

DHW OPERATION

DIVERTER VALVE BODY

Next: End

DHW OPERATION

DIVERTER VALVE HEAD

Next: End

DHW OPERATION

SECONDARY HEAT EXCHANGER

Next: End

DHW OPERATION NO PREHEAT

DIVERTER VALVE BODY

Next: End

DHW OPERATION NO PREHEAT

DIVERTER VALVE HEAD

Next: End

DHW MODULATION NO PREHEAT

DISPLAY PCB

Next: End

DHW BURNER ESTABLISHED BURNER IGNITES STRAIGHT TO HIGH FLAME NO PREHEAT

GAS VALVE

Next: End

CH DEMAND NO PREHEAT

MAIN PCB

Next: End

CLOCK OUTPUT VOLTAGE OK NO PREHEAT

MAIN PCB

Next: End

NO IGNITION NO PREHEAT

TIMER (CLOCK)

Next: End

CH IGNITION NO IGNITION NO PREHEAT

MAIN PCB

Next: End

BOILER TO TEMPERATURE RADIATORS COLD NO PREHEAT

DIVERTER VALVE HEAD

Next: End

BOILER TO TEMPERATURE RADIATORS COLD NO PREHEAT

Next: End

BOILER AND RADIATORS PROVIDE INSUFFICIENT HEAT NO PREHEAT

MAIN PCB

Next: End

CH MODULATION NO PREHEAT

DISPLAY PCB

Next: End

NO FAULT FOUND

APPLIANCE APPEARS SATISFACTORY

Next: End

DHW FLOW RATE

SECONDARY HEAT EXCHANGER

Next: End

DHW OPERATION

PRIMARY HEAT EXCHANGER

Next: End

CH NOISY DHW OK

Next: End

DHW OPERATION NO PREHEAT

SECONDARY HEAT EXCHANGER

Next: End

CH NOISY DHW OK NO PREHEAT

Next: End

DHW TEMPERATURE LOW RADIATORS COLD

SECONDARY HEAT EXCHANGER

Next: End

DHW TEMPERATURE LOW RADIATORS COLD NO PREHEAT

SECONDARY HEAT EXCHANGER

Next: End

DHW TOO HOT

NON RETURN VALVE

Next: End

DHW TOO HOT NO PREHEAT

NON RETURN VALVE

Next: End

BOILER REACHES TEMPERATURE DHW COLD NO PREHEAT

MAIN PCB

Next: End

BOILER REACHES TEMPERATURE DHW COLD

MAIN PCB

Next: End

DHW FAN RUNS

MAIN PCB

Next: End

DHW BURNER IGNITIONA2

AIR PRESSURE SWITCH

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1C

MAIN PCB

Next: End

DHW BURNER IGNITIONA2DHW BURNER ESTABLISH PREHEAT

AIR PRESSURE SWITCH

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1CDHW BURNER ESTABLISH PREHEAT

MAIN PCB

Next: End

DHW BURNER IGNITIONA2DHW OPERATION1

AIR PRESSURE SWITCH

Next: End

DHW FAN RUNS

FAN ASSEMBLY

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1CDHW OPERATION1

MAIN PCB

Next: End

DHW BURNER IGNITIONA2DHW OPERATION

AIR PRESSURE SWITCH

Next: End

ABOILER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE 1CDHW OPERATION

MAIN PCB

Next: End

Sparking present

CHARACTERISTIC TEST FROM DHW BURNER IGNITION

Next: p159

No sparking

CHARACTERISTIC TEST FROM DHW BURNER IGNITION

Next: p161

Burner ignition pressure low or dies out

CHARACTERISTIC TEST FROM DHW BURNER ESTABLISH

Next: p202

Burner ignites but baffles out

CHARACTERISTIC TEST FROM DHW BURNER ESTABLISH

Next: p211

Burner ignition spark continues, boiler goes to lockout

CHARACTERISTIC TEST FROM DHW BURNER ESTABLISH

Next: p216

No ignition

CHARACTERISTIC TEST FROM CH DEMAND

Next: p252

Boiler and radiators provide insufficient heat

CHARACTERISTIC TEST FROM CH OPERATION

Next: p303

Boiler to temperature, radiators cold

CHARACTERISTIC TEST FROM CH OPERATION

Next: p309

CH noisy, DHW OK

CHARACTERISTIC TEST FROM CH OPERATION

Next: p319

Burner ignites straight to high flame

CHARACTERISTIC TEST FROM CH DEMAND

Next: p347

Sparking present

CHARACTERISTIC TEST FROM DHW BURNER IGNITION

Next: p405

No sparking

CHARACTERISTIC TEST FROM DHW BURNER IGNITION

Next: p407

Burner ignition pressure low or dies out

CHARACTERISTIC TEST FROM DHW BURNER ESTABLISH

Next: p464

Burner ignites but baffles out

CHARACTERISTIC TEST FROM DHW BURNER ESTABLISH

Next: p466

Burner ignition spark continues, boiler goes to lockout

CHARACTERISTIC TEST FROM DHW BURNER ESTABLISH

Next: p468

DHW noisy operation

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p574

DHW temperature low, radiators cold

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p702

DHW temperature low, radiators hot

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p578

Preheat inoperative, DHW takes too long to reach satisfactory temperature

CHARACTERISTIC TEST FROM DHW OPERATION

Next: !p580

DHW noisy operation

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p628

DHW temperature low, radiators cold

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p630

DHW temperature low, radiators hot

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p632

No ignition

CHARACTERISTIC TEST FROM CH DEMAND

Next: p650

Burner ignites straight to high flame

CHARACTERISTIC TEST FROM CH DEMAND

Next: p652

Boiler and radiators provide insufficient heat

CHARACTERISTIC TEST FROM CH OPERATION

Next: p673

Boiler to temperature, radiators cold

CHARACTERISTIC TEST FROM CH OPERATION

Next: p675

CH noisy, DHW OK

CHARACTERISTIC TEST FROM CH OPERATION

Next: p677

Initial temperature of DHW excessive

CHARACTERISTIC TEST FROM DHW OPERATION

Next: !p732

Initial temperature of DHW excessive

CHARACTERISTIC TEST FROM DHW OPERATION

Next: !p734

Boiler reaches temperature, DHW cold

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p737

Boiler reaches temperature, DHW cold

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p755

BURNER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p837

BURNER FIRES BUT SHUTS DOWN AFTER A SHORT WHILE

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p852

BURNER LIGHTS FOR A SHORT TIME THEN GOES OUT

CHARACTERISTIC TEST FROM DHW BURNER ESTABLISH

Next: p805

BURNER LIGHTS FOR A SHORT TIME THEN GOES OUT

CHARACTERISTIC TEST FROM DHW BURNER ESTABLISH

Next: p822

21/12/2011 09:18:51 3_1_50_1 03/01/2012 12:38:12

16/12/2011 14:28:54

Next: End

VOLTAGE TO MAIN PCB

Next: p109, !f182

AIR PRESSURE SWITCH N/O

Next: p138, f127

AIR PRESSURE SWITCH TUBES

Next: p128, !f129

AIR PRESSURE SWITCH TUBES

Next: p171, !f172

GAS INLET PRESSURE

HOT WATER TEMPERATUR

Next: p187, !f188

DHW STOPCOCK

Next: p707, !f366

VOLTAGE TO FAN

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p85, f119

VOLTAGE TO IGNITION PCB

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p238, !f353

DHW THERMISTOR

Next: !p246, !f247

CLOCK FITTED

Next: p255, f256

TIMER LINK VOLTAGE

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p354, !f272

CLOCK VOLTAGE INPUT

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p269, !f270

DIVERTER VALVE VOLTAGE

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM
CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p312, !f341

PRIMARY THERMISTOR

Next: !p332, !f333

VOLTAGE TO IGNITION PCB

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p368, !f369

DHW FAN RUNS

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM

Next: p403, f381

VOLTAGE TO FAN

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p382, f383

AIR PRESSURE SWITCH N/O

Next: p384, f385

AIR PRESSURE SWITCH TUBES

Next: p386, !f387

AIR PRESSURE SWITCH TUBES

Next: p410, !f411

VOLTAGE TO IGNITION PCB

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p418, !f419

GAS INLET PRESSURE

HOT WATER TEMPERATUR

Next: p426, !f427

VOLTAGE TO IGNITION PCB

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p430, !f431

DIVERTER VALVE VOLTAGE

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM
CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p583, !f584

DIVERTER VALVE VOLTAGE

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM
CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p635, !f636

DHW THERMISTOR

Next: !p645, !f646

CLOCK FITTED

Next: p657, f658

TIMER LINK VOLTAGE

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p659, !f660

CLOCK VOLTAGE INPUT

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p663, !f664

DIVERTER VALVE VOLTAGE

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM
CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p682, !f683

PRIMARY THERMISTOR

Next: !p696, !f697

BYPASS VALVE

Next: !p711, !f722

VENTURI

Next: p814, !f815

VENTURI

Next: p831, !f832

VENTURI

Next: p846, !f847

VENTURI

Next: p861, !f862

VOLTAGE TO DISPLAY PCB

Next: p95, f108

FUSE F2

Next: p110, !f181

FUSE F1

Next: !p117, !f180

VENTURI

Next: p130, !f131

FLUE

Next: !p132, !f177

DHW FLOW SWITCH

Next: p139, !f150

OVERHEAT THERMOSTAT

Next: p140, !f358

PRIMARY THERMISTOR

Next: p142, !f143

DHW THERMISTOR

Next: p769, !f145

BURNER PRESSURE

HOT WATER TEMPERATUR

Next: p185, f186

AIR PRESSURE PROVING

HOT WATER TEMPERATUR

Next: p162, f170

SPARK GENERATOR SUPPLY VOLTAGE

HOT WATER TEMPERATUR

Next: p227, f237

VENTURI

Next: p173, !f174

FLUE

Next: !p175, !f176

ELECTRODE POSITION

Next: !p242, !f190

GAS VALVE VOLTAGE FROM IGNITION PCB

SET MULTIMETER TO AC

Next: p191, f367

GAS VALVE RESISTANCE

Next: !p193, !f243

PRIMARY THERMISTOR

Next: p203, !f245

MODULATING SOLENOID VOLTAGE

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM

Next: p205, !f206

MODULATING SOLENOID RESISTANCE

Next: p207, !f208

GAS INLET PRESSURE

HOT WATER TEMPERATUR

Next: !p209, !f210

PRIMARY HEAT EXCHANGER FLUE WAYS

Next: p212, !f213

GAS INLET PRESSURE

HOT WATER TEMPERATUR

Next: !p214, !f215

ELECTRODE POSITION

Next: p217, !f240

ELECTRODE AND LEAD

Next: !p235, !f241

ELECTRODE POSITION

Next: p228, !f231

ELECTRODE AND LEAD

Next: !p229, !f230

ROOM THERMOSTAT INPUT

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: p253, f254

ROOM THERMOSTAT OUTPUT

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: p569, !f266

CLOCK VOLTAGE OUTPUT

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p268, f267

PUMP LIMPET TEST

Next: p304, !f356

PRIMARY THERMISTOR

Next: !p355, !f337

DIVERTER VALVE HEAD

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM
REMOVE DIVERTER VALVE HEAD

Next: p310, f311

DIVERTER VALVE BODY

Next: p314, !f338

PUMP LIMPET TEST

Next: !p316, !f340

PUMP LIMPET TEST

Next: p713, !f321

DHW FLOW SWITCH

Next: !p348, !f352

DHW FLOW SWITCH

Next: p392, !f393

VENTURI

Next: p388, !f389

FLUE

Next: !p390, !f391

OVERHEAT THERMOSTAT

Next: p394, !f395

PRIMARY THERMISTOR

Next: p396, !f397

DHW THERMISTOR

Next: p398, !f399

SYSTEM PRESSURE SWITCH

Next: !p400, !f401

DHW BURNER IGNITION

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM

Next: p462, ?404, ?406

BURNER PRESSURE

HOT WATER TEMPERATUR

Next: p424, f425

AIR PRESSURE PROVING

HOT WATER TEMPERATUR

Next: p408, f409

SPARK GENERATOR SUPPLY VOLTAGE

HOT WATER TEMPERATUR

Next: p416, f417

VENTURI

Next: p412, !f413

FLUE

Next: !p414, !f415

ELECTRODE POSITION

Next: p420, !f421

ELECTRODE AND LEAD

Next: !p422, !f423

ELECTRODE POSITION

Next: !p434, !f435

GAS VALVE VOLTAGE FROM IGNITION PCB

SET MULTIMETER TO AC

Next: p428, f429

GAS VALVE RESISTANCE

Next: !p432, !f433

DHW BURNER ESTABLISHED

ATTACH U-GAUGE TO BU

Next: p625, ?463, ?465, ?467, ?803

PRIMARY THERMISTOR

Next: p477, !f478

PRIMARY HEAT EXCHANGER FLUE WAYS

Next: p473, !f474

ELECTRODE POSITION

Next: p469, !f470

ELECTRODE AND LEAD

Next: !p471, !f472

GAS INLET PRESSURE

HOT WATER TEMPERATUR

Next: !p475, !f476

MODULATING SOLENOID VOLTAGE

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM

Next: p479, !f480

MODULATING SOLENOID RESISTANCE

Next: p481, !f482

GAS INLET PRESSURE

HOT WATER TEMPERATUR

Next: !p483, !f484

SYSTEM PRESSURE SWITCH

Next: !p570, !f571

CH OPERATION

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p587, f710

DIVERTER VALVE HEAD

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM
REMOVE DIVERTER VALVE HEAD

Next: !p581, f582

DHW OPERATION

HOT WATER TEMPERATURE CONTROL SET TO MAXIMUM

Next: p642, ?627, ?629, ?631, ?733, ?754, ?783

CH OPERATION

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: p716, !f640

GAS RATE

Next: p727, !f638

DIVERTER VALVE HEAD

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM
REMOVE DIVERTER VALVE HEAD

Next: !p633, f634

DHW MODULATION

HOT WATER TEMPERATUR

Next: p643, f644

CH DEMAND

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: p670, ?649, ?651

ROOM THERMOSTAT INPUT

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: p655, f656

DHW FLOW SWITCH

Next: !p653, !f654

ROOM THERMOSTAT OUTPUT

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: p665, !f666

CLOCK VOLTAGE OUTPUT

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p661, f662

SYSTEM PRESSURE SWITCH

Next: !p667, !f668

CH OPERATION

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: p671, ?672, ?674, ?676

SYSTEM PRESSURE RISE

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: p692, !f693

PUMP LIMPET TEST

Next: p688, !f689

DIVERTER VALVE HEAD

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM
REMOVE DIVERTER VALVE HEAD

Next: p680, f681

PUMP LIMPET TEST

Next: p719, !f679

DIVERTER VALVE BODY

Next: p684, !f685

PUMP LIMPET TEST

Next: !p686, !f687

PRIMARY THERMISTOR

Next: !p690, !f691

CH MODULATION

CENTRAL HEATING TEMP

Next: p694, f695

RE-IGNITION DELAY

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: p698, !f699

PUMP OVERRUNS

CENTRAL HEATING TEMPERATURE CONTROL SET TO MAXIMUM

Next: !p700, !f701

DHW FLOW SWITCH

Next: p703, !f706

GAS RATE

Next: p724, !f705

FLOW REGULATOR

Next: !p708, !f709

BYPASS VALVE

Next: !p714, !f723

BYPASS VALVE

Next: !p717, !f718

BYPASS VALVE

Next: !p720, !f721

NON RETURN VALVE

Next: !p725, !f730

NON RETURN VALVE

Next: !p728, !f729

OVERHEAT THERMOSTAT

Next: p738, !f739

PRIMARY THERMISTOR

Next: p740, !f741

DHW THERMISTOR

Next: p765, !f743

OVERHEAT THERMOSTAT

Next: p756, !f757

PRIMARY THERMISTOR

Next: p758, !f759

DHW THERMISTOR

Next: p762, !f761

NON RETURN VALVE

Next: !p763, !f764

NON RETURN VALVE

Next: !p766, !f768

SYSTEM PRESSURE SWITCH

Next: !p770, !f771

DHW THERMISTOR

Next: p806, !f807

PRIMARY THERMISTOR

Next: p808, !f809

OVERHEAT THERMOSTAT

Next: p810, !f811

VENTURI

Next: p812, f813

NON RETURN VALVE

Next: !p818, !f819

FLUE

Next: !p816, !f817

DHW THERMISTOR

Next: p823, !f824

PRIMARY THERMISTOR

Next: p825, !f826

OVERHEAT THERMOSTAT

Next: p827, !f828

VENTURI

Next: p829, f830

NON RETURN VALVE

Next: !p835, !f836

FLUE

Next: !p833, !f834

DHW THERMISTOR

Next: p838, !f839

PRIMARY THERMISTOR

Next: p840, !f841

OVERHEAT THERMOSTAT

Next: p842, !f843

VENTURI

Next: p844, f845

NON RETURN VALVE

Next: !p850, !f851

FLUE

Next: !p848, !f849

DHW THERMISTOR

Next: p853, !f854

PRIMARY THERMISTOR

Next: p855, !f856

OVERHEAT THERMOSTAT

Next: p857, !f858

VENTURI

Next: p859, f860

NON RETURN VALVE

Next: !p865, !f866

FLUE

Next: !p863, !f864

VOLTAGE AT DISPLAY PCB

Next: !p178, !f179

System Information

Total Tests: 431

Sequence Logic: Decoded from encrypted .seq file

Navigation: Dynamic based on pass/fail results

Source: 4731307 GW SWIFTFLOW 100 SIT Control

XSol Diagnostic System - Generated from extracted test data